What is an “accessory dwelling unit”?
An accessory dwelling unit is an attached or detached residential dwelling unit which provides complete independent living facilities for one or more persons, and includes separate permanent provisions for entry, living, sleeping, eating, cooking, and sanitation on the same parcel as a single-family dwelling. An accessory dwelling unit may also be provided as an efficiency dwelling unit and/or a manufactured home. (SMC 19.92.020.A)
“Dwelling unit” defined.
“Dwelling,” “dwelling unit,” or “housing unit” means a room or group of internally connected rooms that have sleeping, cooking, eating, and sanitation facilities, but not more than one kitchen, which constitute an independent housekeeping unit, occupied by or intended for one household on a long-term basis. (SMC 19.92.020.D)
“Efficiency kitchen” defined.
“Efficiency kitchen” means a removable kitchen that contains a sink with a maximum [vertical] waste line diameter of 1.5 inches; appliances that do not require electrical service greater than 120 volts, or natural or propane gas; a limited food preparation counter; and storage cabinets. The entire kitchen shall not exceed six lineal feet, except that if existing counter space is being converted to efficiency kitchen use then the counter space shall not exceed eight lineal feet.
[Examples of prohibited cooking appliances are: ranges, stoves, cook tops, and built-in ovens. Examples of cooking appliances that may be used are: microwave ovens, hot plates, and similar appliances intended for use on top of a countertop. Refrigerator size is not limited.]
Where are accessory dwelling units allowed?
- Accessory dwelling units are allowed in the R-HS, R-R, R-L, R-S, R-M, R-H, R-O, and R-P zones.
- An accessory dwelling unit shall not be located on any parcel already containing a dwelling unit that is non-conforming with respect to land use or density, or developed with a duplex, triplex, apartment, planned development, or condominium. No more than one accessory dwelling unit shall be located on a parcel.
- An accessory dwelling unit may be within, attached to, or detached from the primary dwelling unit. A detached accessory dwelling unit may take the form of a manufactured home on a permanent foundation. If detached, the accessory dwelling unit shall be separated from the main dwelling unit a minimum of 10 feet.
Who can live in an accessory dwelling unit?
Anyone can live in an accessory dwelling unit. The owner of the property shall reside on the property in either the main or accessory dwelling unit (upon construction). Accessory dwelling units, junior accessory dwelling units, or efficiency dwelling units may be rented for periods of 30 days or more. The rental of an accessory unit for periods of less than 30 days is prohibited.
What permits are required for accessory dwelling units?
A building permit is required for all proposed dwelling unit types.